648576
domain: N
Appears in sequences
- Triangle T(n,k) of arctangent numbers: expansion of arctan(x)^n/n!.at n=25A008309
- Scaled sums of odd reciprocals.at n=4A049034
- Triangle T(n,k) of arctangent numbers: expansion of arctan(x)^n/n!.at n=46A049218
- E.g.f.: log((1+x) / (1-x)) / (2*(1-x)).at n=9A081358
- Expansion of e.g.f. -log(1-x)/(1-x^2).at n=9A092692
- Triangle of arctanh numbers.at n=57A111594
- Triangular array read by rows: T(n,k) is the number of square n-permutations possessing exactly k cycles; n >= 0, 0 <= k <= n.at n=57A349645